Stictocardia
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Scientific name | ||||||||||||
Stictocardia | ||||||||||||
Hallier f. |
Stictocardia is a plant genus in the family of wind plants (Convolvulaceae). It includes about twelve species.
description
Strictocardia species are perennial climbing plants. The up to 4 meters long stems are downy hairy, but later bald, the older stems have a slightly flaking bark . The stalked leaves are heart-shaped, pointed towards the front and with entire margins. The upper side of the leaf is hairless, on the underside there are short, black, glandular trichomes .
The flowers are single or up to three in zymose inflorescences . The hermaphrodite flowers are radially symmetrical with a double flower envelope . The sepals are almost equally shaped, circular and covered with black, glandular trichomes. Later they become leathery and surround the fruit. The crown is funnel-shaped, red or scarlet to purple-red in color. The coronet is usually entire. The stamens do not protrude beyond the crown. The stamens are hairy glandular at the base, upwards they are thread-like. The anthers are elongated. The pollen grains have pores (round to oval apertures) over the entire surface (pantoporate), spherical and prickly. The ovary is bilobed and has a stylus that is longer than the stamens. It ends in a head-shaped scar that is divided into two spherical parts .
The fruits are not open, thin-walled and surrounded by enlarged sepals.
Systematics and distribution
The genus Stictocardia was established in 1893 by Hans Gottfried Hallier .
Phylogenetic studies have shown that the stictocardia form a monophyletic clade , but are placed within the morning glory ( Ipomoea ).
The original distribution area of the genus Stictocardia extends from Africa to Malaysia. The most common species, Stictocardia tiliifolia , is also a neophyte in the New World .
There have been about twelve types of Stictocardia since 2004 :
- Stictocardia beraviensis (Vatke) Hallier f. : It is native to tropical Africa and Madagascar.
- Stictocardia cordatosepala Ooststr. : The home is the island of Lombok .
- Stictocardia discolor Ooststr. : The home is the island of Timor .
- Stictocardia incomta (Hallier f.) Hallier f. : It occurs in Somalia, Kenya and Tanzania.
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Stictocardia laxiflora (Baker) Hallier f. : It occurs from Tanzania to KwaZulu-Natal and Madagascar. There are two varieties:
- Stictocardia laxiflora (Baker) Hallier f. var. laxiflora
- Stictocardia laxiflora var. Woodii (NEBr.) Verdc.
- Stictocardia lutambensis (Schulze-Menz) Verdc. : The home is Tanzania.
- Stictocardia macalusoi (Mattei) Verdc. : The home is Somalia.
- Stictocardia mojangensis (Vatke) DFustin & Eich : The home is Madagascar. It was only placed in this genus in 2001.
- Stictocardia neglecta Ooststr. : The homeland ranges from Sulawesi to the Lesser Sunda Islands.
- Stictocardia queenslandica (Domin) RWJohnson : It is only found in Queensland. It was only placed in this genus in 2004.
- Stictocardia sivarajanii Biju, Pushp. & P.Mathew : The home is the Indian state of Kerala .
- Stictocardia tiliifolia (Desr.) Hallier f. : It is originally distributed in tropical and subtropical Asia and on islands in the Pacific, but occurs as a neophyte in Central America and the Caribbean.
Individual evidence
- ↑ a b c d e f g h i j k l m n o p Rafaël Govaerts (Ed.): Stictocardia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 14, 2015.
literature
- Daniel F. Austin: Flora of Panama, Part IX: Family 164. Convolvulaceae . In: Annals of the Missouri Botanical Garden , Volume 62, Pages 157-224.
- Paul S. Manos, Richard E. Miller, Paul Willson: Phylogenetic Analysis of Ipomoea, Argyreia, Stictocardia, and Turbina Suggests a Generalized Model of Morphological Evolution in Morning Glories. In: Systematic Botany , Volume 26, Issue 3, 2001, pages 585-602.
- Daniel F. Austin, E. Eich: Synopsis of Stictocardia with another Madagascan species, S. mojangensis (Convolvulaceae). In: Willdenowia , Volume 31, 2001, pp. 79-85. DOI: 10.3372 / wi.31.31106